Distribution of White Whales (Delphinapterus leucas) in the White Sea and the Southeastern Region of the Barents Sea during the Ice Season

Distribution of White Whales (Delphinapterus leucas) in the White Sea and the Southeastern Region... The habitats, relative occurrence, and distribution of the white whale in the White Sea and the southeastern Barents sea in every month of the ice season have been studied using the results of an aerial ice survey along standard routes from 1970–1991. In these seas, white whales have been found in each month of the ice season, with single animals, “groups,” “schools” or “gams,” “herds,” and large congregations of several hundred animals accounting for 10, 22.8, 47.2, 12.9, and 7% of all aggregations of white whales observed, respectively. The relative occurrence of white whales in the White Sea is higher in March and May (32.5 and 30%, respectively) and lower in February, January, and November (15, 10, and 7.5%, respectively); in December and April, the whales are observed very seldom (2.5% in both months). In the southeastern Barents Sea, the relative occurrence of white whales is highest in May (53.3%) and considerably lower in December and February (16.7 and 10%); only a few animals are found during the remaining ice season. Regarding different habitats, the relative occurrences of white whales in open water, in water openings in the ice, near the edge of pack ice, and in ice packs with different degrees of closeness are 21.5, 11.4, 45.7, and 21.4%, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Distribution of White Whales (Delphinapterus leucas) in the White Sea and the Southeastern Region of the Barents Sea during the Ice Season

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Ecology
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1023/B:RUSE.0000033792.32475.5b
Publisher site
See Article on Publisher Site

Abstract

The habitats, relative occurrence, and distribution of the white whale in the White Sea and the southeastern Barents sea in every month of the ice season have been studied using the results of an aerial ice survey along standard routes from 1970–1991. In these seas, white whales have been found in each month of the ice season, with single animals, “groups,” “schools” or “gams,” “herds,” and large congregations of several hundred animals accounting for 10, 22.8, 47.2, 12.9, and 7% of all aggregations of white whales observed, respectively. The relative occurrence of white whales in the White Sea is higher in March and May (32.5 and 30%, respectively) and lower in February, January, and November (15, 10, and 7.5%, respectively); in December and April, the whales are observed very seldom (2.5% in both months). In the southeastern Barents Sea, the relative occurrence of white whales is highest in May (53.3%) and considerably lower in December and February (16.7 and 10%); only a few animals are found during the remaining ice season. Regarding different habitats, the relative occurrences of white whales in open water, in water openings in the ice, near the edge of pack ice, and in ice packs with different degrees of closeness are 21.5, 11.4, 45.7, and 21.4%, respectively.

Journal

Russian Journal of EcologySpringer Journals

Published: Oct 18, 2004

References

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